Anthropic Software Engineer interview experience

I remember taking it about two weeks before writing my notes, and it felt genuinely tough—not because the coding concepts were especially complex, but because the pace was brutal. The task centered on building a set of APIs to read from and write to an in-memory “database,” and the main challenge was moving quickly while keeping everything correct.

The test ran with four progressive rounds packed into 90 minutes. The first two rounds were coding, and then the last two shifted into design-style work. By the time I reached the later rounds, I felt stretched thin by the speed requirements more